Hi All,
This is Li Jin. We (me and my fellow colleagues at Two Sigma) have been
using Spark for time series analysis for the past two years and it has been
a success to scale up our time series analysis.

Recently, we start a conversation with Reynold about potential
opportunities to collaborate and improve time series functionalities with
Spark in general. For that, first we'd like to get some feedbacks from the
community w.r.t. requirements for time series analysis.
I have created a doc here to cover the what I think are the most common
patterns for time series analysis:
https://docs.google.com/document/d/1j69F4LLjetPykdfzedDN-EmP2f-I-5MPvVY4fugp2xs/edit?usp=sharing
If you have needs/use cases for time series analysis with Spark, we'd
appreciate your feedback.
Thank you